Nokia 5530 XpressMusic User Manual page 94

Security settings
Phone and SIM
Select Menu > Settings and Phone > Phone mgmt. > Security > Phone and SIM
card.
Select from the following:
● PIN code request — When active, the code is requested each time the device is
switched on. Deactivating the PIN code request may not be allowed by some SIM
cards.
● PIN code and PIN2 code — Change the PIN and PIN2 code. These codes can only
include numbers. Avoid using access codes similar to the emergency numbers to
prevent accidental dialing of the emergency number. If you forget the PIN or PIN2
code, contact your service provider. If you forget the lock code, contact a Nokia Care
point or your service provider.
● Lock code — The lock code is used to unlock the device. To avoid unauthorised use
of your device, change the lock code. The preset code is 12345. The new code can be
4-255 characters long. Alphanumeric characters and both uppercase and lowercase
characters can be used. The device notifies you if the lock code is not properly
formatted. Keep the new code secret and separate from your device.
● Phone autolock period — To avoid unauthorized use, you can set a time-out after
which the device automatically locks. A locked device cannot be used until the correct
lock code is entered. To turn off autolock, select None.
● Lock if SIM card changed — Set the device to ask for the lock code when an unknown
SIM card is inserted into your device. The device maintains a list of SIM cards that are
recognized as the owner's cards.
● Remote phone locking — Enable or disable remote lock.
● Closed user group — Specify a group of people to whom you can call and who can
call you (network service).
● Confirm SIM services — Set the device to display confirmation messages when you
are using a SIM card service (network service).
Certificate management
Select Menu > Settings and Phone > Phone mgmt. > Security > Certificate
management.
Digital certificates should be used if you want to connect to an online bank or another
site or remote server for actions that involve transferring confidential information. They
should also be used if you want to reduce the risk of viruses or other malicious software
and be sure of the authenticity of software when downloading and installing software.
Select from the following:
● Authority certificates — View and edit authority certificates.
● Trusted site certificates — View and edit trusted site certificates.
● Personal certificates — View and edit personal certificates.
● Phone certificates — View and edit device certificates.
Digital certificates do not guarantee safety; they are used to verify the origin of software.
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